For all of us who enjoyed watching these two light up the stat charts, it's a sad day. But it certainly isn't a shock after they combined to catch 136 passes for 2,345 yards and 18 touchdowns during the 2013 season.

Landry was the do-it-all guy at receiver. He could beat you deep and wasn't afraid to be physical over the middle of the field as he led the Tigers with 77 catches.

Anthony Jennings won't have the luxury of a veteran receiver group as he takes over as LSU's starting quarterback. Al Messerschmidt/Getty Images

Beckham was an all-purpose nightmare for opposing teams. He averaged 178.1 all-purpose yards a game and the third-team All-American also won the Paul Hornung Award as the nation's most versatile player.

This only makes things tougher for an LSU offense that is already losing senior quarterback Zach Mettenberger. Without the Tigers' top two receivers, quarterback Anthony Jennings, who made his first career start in the Tigers' 21-14 Outback Bowl victory over Iowa, inherits even more pressure to keep the offense going in 2014.

After LSU had one of the most prolific offensive seasons in school history, Jennings' job just got a lot harder with two of the SEC's top receivers jetting for the NFL. It doesn't help that senior Kadron Boone will also be gone, so this receiver corps is starting over from scratch. Freshman Travin Dural will return as the top receiver in 2014 -- and he caught just seven passes for 145 yards and two touchdowns this season. Dural hauled in the game-winning touchdown pass from Jennings in that thrilling win over Arkansas, when Jennings replaced Mettenberger, who tore his ACL.

LSU is used to reloading at positions, but it will be tough for the Tigers' youngsters to generate the sort of production Beckham and Landry provided in 2013.

Now, LSU will keep an eye on sophomore running back Jeremy Hill, who is three years removed from his graduating class and is eligible to leave early for the NFL as well. Hill was one of the SEC's best backs this season, pounding his way to 1,401 yards and 16 touchdowns. He was also third on the team with 18 catches for 181 yards.